Former . prosecutor John M. Dowd also brought up allegations of Mitchell's conflict of interest. Dowd, who had defended Senator John McCain of Arizona during the Keating Five investigation in the late 1980s, cited how he took exception to Mitchell's scolding of McCain and others for having a conflict of interest with their actions in the case and how the baseball investigation would be a "burden" for him when Mitchell was named to lead it.  However, after the investigation, Dowd later told the Baltimore Sun that he was convinced the former Senator had done a good job. 
The Story: In February 2005 Canseco released his autobiography and steroid tell-all, Juiced , Wild Times, Rampant 'Roids, Smash Hits, and How Baseball Got Big. In it he described himself as 'the chemist' having experimented on himself for years. He claimed to have educated and personally injected many players including Mark McGwire, Rafael Palmeiro, Juan Gonzalez, Ivan Rodriguez, and Jason Giambi. In his second book, Vindicated , Canseco added Magglio Ordonez to the list of players he had educated and injected with steroids. He also said he introduced Alex Rodriguez to a trainer/PED supplier after Rodriguez had asked where he could get steroids.
Remember, nothing is alleged to--or can have--happened to all of MLB over some one or two seasons: the claim is that PEDs were being used at a slowly but steadily increasing rate (and thus "distorting records") from very roughly 1980 through the present. Were that so, or anything like it, we would expect to see a clear long-term uptrend during this period. But we don't: we see a nearly flat line that, if anything, slopes slightly down. The "boost" just isn't there. But that doesn't seem to stop anyone from talking about it.